Pipe or hose coupling.



PATENTED AUG. 7, 1906. a. E. LmGENPBLTER; PIPE OR HOSE COUPLING.

APPLICATION FILED JUNE 12, 1905.

UNITED STATES EATENT OFFICE.

CARL E. LINGENFELTER, OF CHICAGO, ILLINOIS, ASSIGNOR TO SCULLY S1EEL & 'IRON COMPANY, F CHICAGO, 1LL1NOIS,A CORPORATION.

PIPE OR HOSE COUPLING.

Specification of Letters Patent.

Application filed June 12, 1905. Serial No. 264,793.

Patented Aug. 7, 1906.

To all'whom it :may concern:

Be it known'that I, CARL E. LINGENFELTER, a citizen of the United States, and a resident of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Pipe or Hose Couplings, 'of which the following is declared to be a full, clear, and exact description.

The invention relates to couplings for pipes or hose, and seeks to provide a simple and efiicient device by which the sections of pipe or hose may-be readily coupled and uncoupled and in which the members of the coupling are automatically locked when in connected pos1t1on,'but in which the locking portions are arranged that a swivel connection is formed b'etween the coupling members.

The invention consists in the features of construction and arrangements of partshereinafter set forth, illustrated-in the adcompanying drawings, and more particularly pointed out in the appended claims.

In the drawings, Figure 1 is a side elevation of the improved coupling. Fig. 2..is a longitudinal section thereof with a portion of t ie male member of the coupling shown in elevatlon. Fig. 3 is a perspective view of the ends of the coupling members. cross-section of the connected members, taken on line 4 40f Fig. 2. Fig. 5 is' a perspective end view of the lockingring. F ig. 6 1s a View similar to that shown in Fig.2, but

. in which the connection between the coupling members 18 not complete.

Male and female coupling members are preferably employed. The female member 10 is provided with an enlarged head 11, having an internal annular groove 12 arranged between an inwardly-projecting flange or abutment 13 and the shoulder 14. The packng-rmg 15, preferably U-shaped in section, is arranged in the groove 12, and the end of the male member 16 extends within the female member and projects through the packing-ring, so that the latter engages the outer surface thereof.

One of the coupling members is provided with an inwardlv-projecting notched flange,

and the othercoupling member is provided with outwardly or radially.projectinfig lugs ange. Preferably the inwardly-pro ecting flange, having sector-shaped portions or lugs 17 and Fig. 4 is a head 11 of the female coupling member 10, while the male section is provided with out- Wardly-projecting sector-shaped lugs 19, arranged to interlock with the notched flange of the female member. The [inwardly-projecting flange 17 of the female. member is separated somewhat from the flange or abutment 13 thereof, so as to leave a space 20 to receive the lugs 19 of the male member. I

One of the coupling members is provided with an axially-movable locking-ring having radially-disposed lugs arranged to engage the flanges or lugs of the other of said members. This axially-movable lockin -ring is preferably mounted upon the male member, and

for this purpose the latter is provided at some distance from its end with an annular flange 21, over which the locking-ring 22 slides. ring 23, soldered, brazed, or otherwise se-; cured within the inner end of the locking ring 22, forms an abutment or shoulder and engages the flange 21 of the male member to prevent the withdrawal of the locking-ring therefrom. The outer end of the locking-ring is provided with an inwardly-projecting flange or abutment 24, from the inner edge .of which extend the forwardly-projectin portions 25, having outwardly or radially extending segmental lugs'26 at their ends. A spring 27, coiled aboutthe male member, is inter osed between the flange 21 thereof and the ange 24 of the locking-ring; Spring 27 normally holds the locking-ring in its for? notches 18, is arranged upon the end of the latter back against the pressure of spring 27 O into the position shown in. Fig. 6, so that the male member may be turned to'bring its lugs 19 behind the lugs 17 of the female member. As soon, however, as the lugs 26 of the locking-ring re ister with the notches 18 the spring 27 will force the locking-rim forward to bring its lugs 26 again in line with the lugs 19 of the male member. It should be noted 20 male member.

35 essentials of the invention.

that the lugs 19 and 26 of the male member and lockii'ig-iing and the notched flange 17 of the l'emale memli er are arranged in a plane at right angles to the axles oi the coupling 5 and. that in connected position. the lugs 19 1'0 the same time, however, the coupling members are automatically locked against disengagement, since in any position either the lugs H 1 or 26 are behind the inwardly-projecting portions 1? ol' the female member. It should also be noted that the lugs if) of the male member and the lugs 26 of the lockingring are alteri'iately disposed and are arranged to be l'i'mught successively into engagement with the notched flange of the le- To disengage the coupling, the members are turned until the lugs 26 of the locking-ring are opposite the openings 18 of the notched flange. The locking-ring can then be withdrawn against the tensi on of its 25 spring 47 into theposition shown in Fig. 6.

Then by further giving a quarterturn to the male member the lugs 1.9 are brought opposite the openings 18 and the male member can be withdrawn from its connected position. A

0 key 28 on the locking-ring engages a notch in flange 21 and prevents the rotation of the locking-ring on the male member 16.

it is obvious that the details of structure may be varied without departure from the Having described my invention, what I. claim as new, and desire to secure by Letters Patent, is-

1. A pipe-c n 1pling comprising two mem- 0 bers, one having an inwardly-projecting notched flange and the other having outwardl'v-projecting interlocking lugs, and an axis rnovablc locking-ring mounted, on one oi said members and having radially- 5 disposed lugs arranged to ci'igage the llanges or lugs of the other of said members.

2. A pipe-conp ing comprising two mono ners having interlocking flanges or lugs and an axially-movable locking-ring mounted on 50 one of said members and having lugs arranged to engage the flanges or lugs ol' the otner ot said-members, said Ilangcs and lugs being r-n'ranged 111 planes at right angles to the fLXlS oi the coupling and adapted to slide r inst each other. whcreb i a swivchzd U0ll110nm J I tion is formed between said coupling members.

A pipe-coupling comprising two members having radially-disposcd interlocking 6o flanges or lugs, and a s 'iring-hcld, axiallymovable locking-ring mounted. on one of said members and having radially-disposed lugs ice arranged to engage the flanges or lugs of the other of said members. 7

4. A pipe-coupling comprising two memhers, one having an inwardly projecting notched flange and thesecond member having outwardly-projectin interlocking lugs and an axially-movable lbcking-ringmounted on said second member and having outwardly-projecting lugs arranged to engage said notched llan e.

A pipe-coup ing comprising two members, one of said members having an inwardly-projecting notched flange, and an axiallynnovable, spring-held lockin -ring on the other of saidv members, said lociing-ring and said second coupling member having 9.1-

ternately arran ed, outwardly projecting lugs arranged to be brought successively ngto engagement with said notched flange.

6. A. pipe-coupling comprising male and female members, one of said members havmg an mwardlypro ect1ng notched flange and the other having outwardly-projecting interlocking lugs, an axially-movable lock-.

ing-ring mounted on one of said members having radially-disposed lugs arranged to engage the llanges'or lugs of the other of said members, said lugs and flange being arranged to, slide by one another 1n connected position,

whereby a swiveled connection is formed between said coupling members, and a packingring on said female member through which said male member-extends.

7. A pipe-coupling comprising male and female members, said female member having an inwardlyprojecting notched flan e, and said male member having outward yprojecting interlocking lugs, and an axiallymovable locking-ring on said male member having outwardly-projectingb lugs, the out.

CARL E. LINGENFELTER. Witnesses:

KATHARINE GERLAon, HARRY L. CLAPr. 

